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\noindent
 Your name
 

\vspace*{12pt}

\begin{center}

{\large {\bf   Test 3, December 8, 2021
}}
\end{center}
 

\noindent
     This test lasts half an hour. Show your work. 

\bigskip
     
  
\noindent
1.  What is 10.70180 to the nearest hundredth? 
 10.70
%\vspace*{42pt}

\noindent
2.  Write sixty-four and  thirty-four  ten-thousandths as a decimal. 
  64.0034 HARD
 %\vspace*{42pt}

\noindent 
3.  What is .319 + 56.007 + 8.252?
 64.578
%\vspace*{120pt}


\noindent 
4.  What is  5.816 - 4.98?
 .836
% \vspace*{120pt}

\noindent 
5.  What is 3.18 times 2.23?
  7.0914
%\hspace*{1in}
  

 \noindent
6. What is 6.804 divided by 6? 
  1.134
 % \vspace*{120pt}

\noindent 
7.  What is 16.15 divided by 3, rounded to 3 decimal places? 
  5.383
%\vspace*{72pt}

\noindent 
8. What is your estimate for 9.0723 divided by 3.0005, rounded to one decimal place? 
 3.0 4 HARD
%\vspace*{42pt}


\noindent 
9.  What is 17/3 rounded to 4 decimal places? 
5.6667 
%\vspace*{42pt}

\noindent 
10.  What values can the number $x$ take if $x >4$ and $x \leq 5$?  Any $x$  between 4 and 5, excluding 4 but including 5. 4 HARD
 
%\vspace*{72pt}

 

\noindent 
11.   What values can the number $x$ take if $x $ is in $[10,11)$? Any $x$ such that $x \geq 10$ and $x <11$. 4 HARD
 
%\vspace*{72pt}



\noindent 
12. What values can the number $x$ take if $x $ is in $\{10,11\}$? Just 10 or 11. 4 HARD
 
 %\vspace*{72pt}
 
 

\noindent 
13. What is the ratio of 7 yards to 14 feet? 4 HARD
  3 to 2. 
%\vspace*{42pt}

\noindent 
14.  Explain why it is true or false that 35/45 = 12/18. 
 False, because $7/9 \neq 2/3 = 6/9$. HARD
%\vspace*{92pt}
  


\noindent 
15. If $\frac{6}{10} = \frac{15}{x}$, what is $x$? $x = 25$. 
 
%   \vspace*{72pt}

\noindent 
16.  If $\frac{0}{10} = \frac{x}{.89745}$, what is $x$?
Zero
%  \vspace*{92pt}
  
 
\noindent 
17. What does “Venite Adoremus” mean? 
 Come you-all, let us adore. 
  %  \vspace*{42pt}
   
 
\noindent 
18.   A pint of water contains 16 ounces of water.  What is the weight of 8 ounces of water, measured in pounds?  
1/2 pound.  HARD

  %\vspace*{42pt}
  
  
\noindent 
19. How many pennies are in a shilling? 
12 (or 5 new pence) HARD
 % \vspace*{42pt}
  
  
  
\noindent 
20.    What does it mean for something to be obsolete? 
It means that it is no longer useful because there is a newer thing that replaced it.   
 
 % \vspace*{72pt}

 
\noindent  
{\it Bonus question.}  Explain (a)  how to  add decimals, and (b) how to divide decimals to someone in 5th grade who has just learned what a decimal is. Don't just start writing. Think about how you would do (a), and then write it out carefully, and then read it over and decide what you want to change in your explanation. Then do the same for (b). 

(a) Line up the numbers with the decimal points above each other, adding zeroes after the decimal if necessary. Then subtract in the usual way, always inserting the decimal point below the original decimal points. 

(b) Not enough room on this page. 

 
 


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